Plate Tecs.
What is the giant continent called?
What is pangea?
What is the hardest mineral?
Diamond
How many layers does the earth have?
4
What does divergant do
Push away or divide
What is a streak?
●The color of the powder left behind when a mineral is scratched across a streak plate (white or black ceramic tile)
More reliable test than color
What kind of event is caused by transform plate tectonics?
What is earthquakes and valleys along fault line
What is the easist to observe but is least helpful
Color
Describe the inner core
•Solid, mostly iron, solid due to extreme pressure
What does convergent do?
Colide or push together
What is luster?
●Dependent on how a mineral reflects light
●In general how shiny or matte a mineral is
What things are caused/formed due to convergent plates?
What is:
Mountains
Trenches
Volcanoes
Earthquakes
What are the 5 requirements of a mineral?
–Naturally occurring (not man made)
–Solid (no liquids or gasses)
–Inorganic (was never alive)
–Have a definite chemical composition (be made of element(s))
–Atoms arranged in an orderly pattern (a crystalline structure such as cubic or tetrahedron)
Describe the outer core
•Liquid, mostly iron but more elements and minerals are present than in inner core
What does transform do?
Slide past
What is hardness?
●Tests a minerals scratch resistance or its ability to scratch an object
What is caused by divergent plates?
•Mid Ocean Ridges/ Sea Floor Spreading
•Rift Valleys & Rifts
•Volcanoes
•Deep Sea Hydrothermal Vents
Whats the difference between a fracture and cleavage?
Cleavage is flat
fracture is ugly
Describe the mantle
More viscous towards the center but begins to solidify as moves closer to the surface (b/c it’s cooling down)
What does the sub one do?
Go underneath
What is cleavaeg?
the way a mineral breaks along smooth planes at weak chemical bonds
What are the 5 evidences for plate tectonics?
*Fossil Distribution
*Matching coastlines
*Paleoclimates
*Matching rock layers
*Paleomagnetism
What is the scale called that is used to test hardness?
Mohs hardness scale
Describe the crust
the VERY thin upper most layer where we live, dig, mine, farm, etc
What was the man who created the idea of plate tec.
Alfred Wegener
What is a fracture?
●Fracture is the tendency of a mineral to break along curved surfaces without a definite shape. These minerals do not have planes of weakness and break irregularly.